Knuckle Lights Original &ndash; Unique LED Light for Running, Jogging, Walking & Hiking 2 LIGHTS PER SET -- The units are held comfortably on your hands with soft silicone straps. The straps are easily adjusted to fit any size hand and even over gloves. 150 TOTAL LUMENS -- The LED pattern is a wide flood beam, putting out light in all directions, providing a steady, even light in front of you that does not bounce around, even with your arms moving. 3 POWER SETTINGS -- High, Low & Blinking WEATHERPROOF -- Knuckle Lights can be used in all conditions: heavy rain, bitter cold and extreme heat. BATTERIES INCLUDED -- Each Unit Operates on 2 X AAA Batteries. The perfect light for runners.